SM45 Plastic Die Mold Steel

Product Name:Plastic Mould Steel---SM45

Similar steel grades:

Chemical composition:

Principal Feature:

SM45 steel is a high-quality carbon plastic mold steel. Compared with high-quality 45 carbon structural steel, the sulfur and phosphorus content in the steel is low, and the purity of the steel is good. Due to the poor hardenability of this steel, larger-sized plastic molds are generally made in hot rolling, hot forging or normalizing conditions. The hardness of the mold is low and the wear resistance is poor. To manufacture small plastic molds, higher hardness and better strength and toughness can be obtained by quenching and tempering. The carbon content in steel is high and cracks are prone to occur during water quenching, so oil quenching is generally used.

Typical Application:

The advantages of SM45 steel are that it is cheap, has good cutting performance, has high hardness after quenching, and has good strength, toughness and certain wear resistance after quenching and tempering. It is widely used in the manufacture of medium and small, medium and low-grade products. Plastic mold.

Heat Treatment:

Hot rolled delivery state hardness 155~215

Size available: 

We can provide professional steel as per your detail requirement!